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I <br /> TABLE I <br /> GROUNDWATER <br /> ELEVATION AND ANALYTICAL SUMMARY <br /> USA Station No. 65 <br /> 2500 West Lodi Avenue, Lodi, California <br /> Depth to Well Groundwater Total <br /> Well Date Water Elevation Elevation TPHG Benzene Toluene Ethylbenzene Xylenes MTBE <br /> Number Collected (feet) (ft msl) (ft msl) (Pg/L) (µg/L) (µg1L) (µg/L) (µ91L) OWL) <br /> S-2 3/30/99 36.60 37.48 0.88 2,300 120 5.5 88 270 2,900 <br /> 6/28/99 38.86 -1.38 8,900 510 65 96 1,300 10,000 <br /> 12/19/99 40.11 -2.63 1,900 48 44 40 76 1,300 <br /> 5/17/00 39.60 37.18* -2.42 3,100 240 7.6 160 408 2,800 <br /> 9122100 40.93 -3.75 7,400 130 270 270 1,300 2,600 <br /> 1216100 39.91 -2.73 2,000 38 8.6 57 150 1,100 <br /> 2123/01 39.17 -1.99 <50 <0.5 <0.5 <0.5 <0.5 88 <br /> 5/22101 38.58 -1.40 62 <0.5 <0.5 1.3 3.3 47 <br /> 8/8/01 40.84 -3.66 6,200 12 140 5.4 730 2,600 <br /> 10/27/01 43.43 -6.25 74 <0.50 <0.50 <0.50 <0.50 12 <br /> 2/18102 42.37 -5.19 84 <0.50 <0.50 <0.50 2.8 2.6 <br /> 512102 42.18 -5.00 <50 <0.50 <0.50 <0.50 <0.50 47 <br /> 8/12/02 43.77 -6.59 <50 <0.50 <0.50 <0.50 <0.50 <0.50 <br /> 11/8/02 45.20 -8.02 580 <0.50 4.1 <0.50 0.84 0.95 <br /> I <br /> Explanation: <br /> TPHG analyzed by USEPA Method 8015 <br /> i <br /> BTEX and oxygenates analyzed by USEPA Method 8260B <br /> TPHG=Total petroleum hydrocarbons as gasoline <br /> MTBE=Methyl tertiary butyl ether <br /> NA=Not analyzed <br /> =Reporting limits were increased due to high concentrations of target analytes <br /> 2=Reporting limits were increased due to sample foaming <br /> *Wells re-surveyed on 8/4/00 by Morrow Surveying,Inc. <br /> USA_65_Quarterly_Data.xls Page 9 of 9 SrRA-W5 <br /> li <br /> i <br />